Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong min can snippets" » "dong ming can snippets", "dong tin can snippets", "dong mon can snippets", "dong minh can snippets", "dong kinh can snippets", "dong ming yan snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong min can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong min can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong min can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong min can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.